118278449 has 2 divisors, whose sum is σ = 118278450. Its totient is φ = 118278448.

The previous prime is 118278437. The next prime is 118278467. The reversal of 118278449 is 944872811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87086224 + 31192225 = 9332^2 + 5585^2 .

It is a cyclic number.

It is not a de Polignac number, because 118278449 - 2¹² = 118274353 is a prime.

It is not a weakly prime, because it can be changed into another prime (118278049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59139224 + 59139225.

It is an arithmetic number, because the mean of its divisors is an integer number (59139225).

Almost surely, 2^118278449 is an apocalyptic number.

It is an amenable number.

118278449 is a deficient number, since it is larger than the sum of its proper divisors (1).

118278449 is an equidigital number, since it uses as much as digits as its factorization.

118278449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 44.

The square root of 118278449 is about 10875.5895932129. The cubic root of 118278449 is about 490.8723167563.

The spelling of 118278449 in words is "one hundred eighteen million, two hundred seventy-eight thousand, four hundred forty-nine".